Ⅰ.单词拼写
1．Don’t put that glass so near the __edge__(边缘) of the table.
2．One of his __lungs__(肺) gave out entirely.
3．Most stars are not __visible__(看得见的) to the naked eye.
4．Scientists continue to push back the __boundary__(界限) of human knowledge.
5．The river runs a narrow course through the __valley__(峡谷).
6．You may have free passage across our __territory__(领土) whenever you require it.
7．He’s let his __cottage__(小别墅) to some people from London.
8．I’ve been __sneezing__(打喷嚏) all morning.
9．We carefully __labelled__(贴标签) each item with the contents and the date.
10．Chemical weapons are __banned__(明令禁止) internationally.
